Member Directory The AAS maintains a membership directory to facilitate member interaction and to support the conduct of official Society business. Search directory for: Filter Results By Clear Filters Type of Science State (-) MD (1) Facet State City Accokeek (1) Annapolis (2) Baltimore (1) Bethesda (2) Bowie (1) Catonsville (1) College Park (3) Crownsville (1) Edgewater (1) Elkridge (1) Ellicott City (1) Greenbelt (2) Lanham (2) Laurel (1) Mitchellville (1) North Potomac (1) Owings (1) Rockville (1) Silver Spring (1) Sykesville (1) Wheaton (1) (-) Crofton (1) Facet City Membership Class (-) Full Emeritus Member (1) Facet Membership Class Division HEAD (1) Facet Division Showing 1-1 of 1 results Donald Kniffen Full Emeritus Member Affiliation State/Province MD Country United States